6. Which of the following is true in regard to Indian railway?(A) It is the cheapest means of transportation(B) The chief source of income is transportation of goods(C) It is the only largest employer(D) All of the aboveAns : (D)

7. The Headquarters of North Western Railway is at—(A) Abu Road(B) Jodhpur(C) Ajmer(D) JaipurAns : (D)

8. Which amongst the following is the train introduced by Indian Railways bringing travel by AC class withing the reach of a common man?(A) August Kranti(B) Jan Shatabdi(C) Garib Rath(D) Sampark KrantiAns : (C)

9. Persons with which blood group are called universal donors—(A) AB(B) A(C) O(D) BAns : (C)